
array = [6.6, 5.8, 5. , 7.7, 4.6, 4.7, 5.5, 6.1, 6.5, 6.1, 5. , 6.4, 5.4,6. , 5.5, 7.2, 5.9, 6.4, 5. , 5.2, 5. , 6.4, 6.2, 5.1, 6.4, 5.8, 5.1, 6.3, 6.5, 4.9, 7.4, 5.7]
print(len(array))